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From David Weintraub <>
Subject Re: Still trying to get timestamped snapshots downloading
Date Wed, 12 Feb 2014 19:39:57 GMT
We have both a snapshot and release repositories in Artifactory. All we have to do is add "-SNAPSHOT"
to the end of the revision and we get the snapshot and not the release. Maven does not guarantee
you can select which snapshot you want. In Maven 3, you can only get the last one.

Here's our ivysettings-pulbic.xml:

        <ibiblio name="public"
            root="http://buildl01.tcprod.local/artifactory/libs-release" />

We setup Artifactory so that libs-release is actually a virtual repository which includes
our local release and snapshot repos (plus a bunch of public repos).

David Weintraub

perl -e 'print "Just another second rate Perl Hacker\n";'

On Feb 12, 2014, at 1:35 PM, KARR, DAVID <> wrote:

> I've been struggling for a while trying to figure out how to get Ivy to download a snapshot
artifact.  I originally posted a question about this on StackOverflow last week.  I got some
good responses, but I'm not getting any more traction on this.  I wanted to start over with
a new post here summarizing what I know so far.
> The crux of the problem appears to be that when my Maven build uploads a snapshot artifact,
it gets stored in the Nexus repository with a timestamp in the name.  When Ivy resolves and
retrieves this artifact, the resolve succeeds, but it doesn't retrieve because the file names
don't match what is configured in the Ivy repository definition.  I don't understand how to
configure the repository definition so this will work.
> I'll describe my configuration verbally, then show the files that specify this.
> My app has 9 dependencies, 7 of which I get from Central, 1 of which I get from our thirdparty
repo on our local "MavenCentral" (it's an intranet Nexus Pro instance with a confusing name),
and the one dependency I'm trying to get from the snapshot repo on the same Nexus Pro instance.
 The other 8 dependencies, including the one from the thirdparty repo on the intranet Nexus
Pro instance, resolve and retrieve without error.
> I define four resolvers in my resolver chain:
> * Local Maven repo
> * Snapshots repo on Nexus Pro instance
> * Thirdparty repo on Nexus Pro instance
> * Central
> I have one build target that resolves and retrieves all the dependencies.
> If I look inside my Nexus Pro instance at the two artifacts I get from there (one thirdparty,
and one snapshot), I see the following off of the root directory specified in the repository
definition in my ivysettings.xml file:
> com/oracle/coherence/12.1.2-0-0/coherence-12.1.2-0-0.jar
> This downloads fine.
> However, in the snapshot repo, I see files like this:
> /com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-20131206.234206-76.jar
> /com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-20140210.184009-86.jar
> Ivy fails to download this artifact.
> (I also wonder if Ivy can possibly know to try to get the snapshot with the newest timestamp.)
> Here are some excerpts from my configuration:
> build.xml:
> ---------------
> <target name="install-dependencies">
>      <ivy:resolve transitive="false" type="jar"/>
>      <ivy:retrieve conf="*" type="jar" pattern="${basedir}/lib/[artifact]-[type]-[revision].[ext]"/>
>    </target>
> ---------------
> ivy.xml:
> ---------------
> <ivy-module version="2.0">
>  <info organisation="com.att.ecom.poc" module="coherence_poc"/>
>  <dependencies>
>    <dependency org="com.att.ecom.poc" name="poc-domain-model" rev="0.0.1-SNAPSHOT"/>
>    <dependency org="org.apache.commons" name="commons-lang3" rev="3.1"/>
>    <dependency org="org.springframework" name="spring-aop" rev="4.0.0.RELEASE"/>
>    <dependency org="org.springframework" name="spring-beans" rev="4.0.0.RELEASE"/>
>    <dependency org="org.springframework" name="spring-context" rev="4.0.0.RELEASE"/>
>    <dependency org="org.springframework" name="spring-core" rev="4.0.0.RELEASE"/>
>    <dependency org="org.springframework" name="spring-expression" rev="4.0.0.RELEASE"/>
>    <dependency org="org.springframework" name="spring-web" rev="4.0.0.RELEASE"/>
>    <dependency org="" name="coherence" rev="12.1.2-0-0"/>
>  </dependencies>
> </ivy-module>
> -------------------
> ivysettings.xml:
> -------------------
> <ivysettings>
>    <settings defaultResolver="default"/>
>    <property name="m2-pattern" value="${user.home}/.m2/repository/[organisation]/[module]/[revision]/[module]-[revision](-[classifier]).[ext]"
override="false" />
>    <resolvers>
>        <chain name="default">
>            <filesystem name="local-maven2" m2compatible="true" >
>                <artifact pattern="${m2-pattern}"/>
>                <ivy pattern="${m2-pattern}"/>
>            </filesystem>
>            <ibiblio name="mavenCentralSnapshots" m2compatible="true"
> 		     root="http://mavencentral/nexus/content/repositories/cditspoc-snapshots"/>
>            <ibiblio name="mavenCentralThirdparty" m2compatible="true"
> 		     root="http://mavencentral/nexus/content/repositories/cditspoc-3rd-party"/>
>            <ibiblio name="central" m2compatible="true"/>
>        </chain>
>    </resolvers>
> </ivysettings>
> -------------------
> This is an excerpt from my IvyDE console in Eclipse (shouldn't I be able to get this
output in some way from the command-line build?):
> -----------------------------
> Sort done for : com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT
> storing dependency com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT in props
> 	resolved ivy file produced in cache
> :: downloading artifacts ::
> 	 trying C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
> 		tried C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
> 	shared: resource not reachable for com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT:
> 	maven-metadata not available:
> 	 trying
> 		tried
> 	public: resource not reachable for com/att/ecom/poc#poc-domain-model;0.0.1-SNAPSHOT:
> WARN: 	[FAILED     ] com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT!poc-domain-model.jar(bundle):
> WARN: ==== shared: tried
> WARN:   C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
> WARN: ==== public: tried
> -----------------------
> What's curious from this output is that it never even attempts to download the artifact
from the Nexus Pro snapshots repo.  It never even tried that repository.

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